We are gathered here today to examine the Christmas Paid Spike.

During Christmas, in between family time, drinking and copious consumption of mince pies - I found myself keeping a mildly guilty eye on the mobile charts. It's fascinating to see how the charts react at such a turbulent time of year and I want to discuss one observation in the hope that other people may be able to provide additional insight.

Observation: The Christmas Paid Spike:

On 25th December 2013, the number of Paid apps in the top 100 Grossing chart leapt up by 250%.

There were significantly more Paid apps in the Grossing chart than at any other time in the year - 28 over Christmas vs 8 for the rest of 2013 and these apps were higher up in the charts than normal. (Perennial top grossing game Minecraft had its highest grossing day in a year (since the last xmas spike)

In 2012, we saw a similar (but lesser) event where the number of Paid apps in the top 100 Grossing increased by 70.8% to 41 over Christmas vs 24 for the rest of 2012. (Side note - interesting figures re the decline of Paid apps in the top Grossing generally...)

(all stats US iPhone top grossing - courtesy of Apple / App Annie - comparison of chart snapshot end of 25th vs Apple Best of 2013)

Potential Causes of the Paid Christmas spike

After a bit of thinking - I came up with 6 potential causes:

Paid apps are viewed as a 'luxury good'

People receive money / gift cards at Christmas and so feel richer than normal. They decide to treat themselves with luxury premium apps that they would normally not get

Apple Editorial team focus

There is a heavy paid app skew in Apple Best of 2013 awards / featuring. People want to install the Apple recommended apps - the fact that the apps are paid is irrelevant to their decision making.

New consumers with existing paid bias

People getting devices over Christmas may be new to the Apple ecosystem and may default to paid apps as they are more familiar with traditional purchase models. Also - they may not download many apps in the future after the initial xmas surge.

Bonus potential cause identified here by @MattRix and it feels like a significant one:

"Paid apps earn all their money on the day they're downloaded. F2P spread it out"

It will probably prove to be a mix of all of the above - however, I find the concept of paid apps as a luxury good particularly interesting. Shout in the comments if you think there are other explanations or you can find me on twitter here